Combined try-square and bevel



(ModeL) L. 1 HOWARD COMBINED TRY SQUARE AND BEVEL. No. 324,323. PatentedAug. 11, 1885.

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N. PETERS. FImlo-Ldhagraphur, Wflsmngom o. c.

UNITED STATES PATENT OFFICE.

LEONARD D. HOWVARD, OF ST. JOHNSBURY, VERMONT.

COMBINED TRY-SQUARE AND BEVEL.

tSPECIIICATIN forming part of Letters Patent No. 324,323, dated August11, 1885.

Application filed October 2, i884. (ModeL) To all whom it may concern:

Be it known that I, LEONARD D. HOWARD, a citizen of the United States,residing at St. J ohnsbury, in the county of Caledonia and State ofVermont, have invented a new and useful Improvement in Try-Squares, ofwhich the following is a specification.

My invention relates to that class of trysquares and bevels which areprovided with removable and adjustable blades; and it has for its objectthe production of a combined try-square and bevel of the above-describedclass which is adapted to hold the blade adjustably at one end of thehead or stock thereof at right angles to the same, the said stock beingfurther so constructed at its opposite end as to adapt it to hold theblade adj ustably therein at an angle of forty-five degrees, withreference to the stock itself, and which shall possess advantages in thepoints of simplicity of construction and etficiency in operation.

To these ends my invention consists in the improved construction andcombination of parts which will be hereinafter fully described andclaimed.

Referring to the annexed drawings, Figure 1 is a top or plan view of myimproved com- 'bined try-square and bevel showing a blade removably andadj ustably secured in each end of thestock thereof. Fig. 2 isalongitudinal sectional view taken on the plane indicated by line as w inFig. 3. Fig. 3 is a 1ongitudinal sectional view taken on the planeindicated by line y y in Fig. 2; and Fig. 4 is an end view of that endof the stock which is provided with the straight transverse slot.

The same letters of reference indicate corresponding parts in all thefigures.

Referring to the several parts by letter, A represents the rectangularhead or stock of my improved combined try-square and bevel,

. which is formed at one end with the straight horizontal slot A,extending through the said end at right angles to the stock, and is alsoprovided at the opposite end with the inclined or slanting horizontalslot A as shown more clearly in Fig. 2 of the drawings. That end of thestock which is provided with the inclined slot A is formed with theinwardlyprojecting sleeve A having the central longitudinal opening oraperture, a, which communicates at its forward end with the inclinedslot.A the lower rear side and upper forward side of this opening abeing inclined or cutaway, as shown in Fig. 3, for the purpose whichwill be hereinafter specified.

A tilting clamping-bolt, O, is pivot-ally secured within the sleeve A bythe transverse pivot-pin E, the ends of which are mounted and slidewithin the longitudinal grooves or slots A, (shown in Fig. 2 of thedrawings,) whereby the bolts 0 are capable of longitudinal movement forthe purpose which will be hereinafter specified, the lower side of theforward portion of this bolt being cut away longitudinally at O, toadapt it to extend over the inner half of the slotted adjustableblade liand being further provided at its 7 outer extremity with thedownwardly-projecting inclined or slanting lip or catch Gr, adapted tofit within the central longitudinal slot B1 of the blade B, the said lipor catch G extending parallel with the inner side of the inclined slot Aas shown more clearly in Fig. 20f the drawings. The blade B is formedwith the central longitudinal slot,B, adapted to re 'ceive thedownwardly-projecting lip or catch G of the clamping-bolt.

D represents a spiral spring, which is seated within a suitable recess,D, in the upper side of the slotted head A, in such a position as toadapt it to bear down upon the upper side of the forward portion of thetilting clampingbolt 0, near the forward end of the same, the object ofthis arrangement being that after the forward end of the bolt has beentilted upward on its pivotal point to admit of the insertion of theblade B, the spiral spring will operate to automatically depress theforward end of the clamping-bolt into its locked or operative position,thereby firmly holding the blade in its adjusted position.

The inner end of the tilting clamping-bolt, which extends beyond theinner end of the sleeve A is formed with an exterior screwthread, 0, andupon this screw-threaded inner end works a nut, F. When it is desired totiltthe clamping-bolt O, in order to adjust or remove the blade B, thisnut is unscrewed toward the rear extremity of the screwthreaded end; butwhen the blade has been placed in position and adjusted, and the spiralspring D has forced the outer end of the clamping-bolt down into itslocked or op- IOO erative position, the not I is screwed home until itbears against the end of the sleeve A, as shown in the drawings, therebydrawing back the bolt 0, (the ends of the pivot-pin E sliding in theslots A" to admit of this move ment,) and effectually locking the bolt 0in its operative position and the blade B in its adjusted position,rendering it impossible for the adjusted blade to become disturbedthrough the accidental tilting of the clamp ing-bolt, which mightotherwise occur through the operators hand unintentionally bearing uponand depressing the inner end of the said bolt, as would be liable tooccur if the locking nut were not employed.

The opposite end of the stock A is provided with the straight transverseslot A, as before stated, extending at right angles to the body of thestock, and is provided with clamping mechanism precisely similar inconstruction to that just described, with the exception that thedownwardly-projccting lip or catch 011 the outer end olthe tiltingclamping-bolt is formed perfectly straight-that is to say, extending atright angles to the length of the bolt itself, to conform to thestraight slot in that end of the stock.

The spiral springs D at each end of the stock A may, if desired, beentirely dispensed with, thereby simplifying the construction, as thenut F will serve to secure the clamping-bolt vin its operative position,as will be readily understood.

From the foregoing description, taken in connection with theaccompanying drawings, the construction and operation of my improvedcombined try-square and bevel will be readily understood withoutrequiring further explanation.

It will be seen that my invention is simple in construction, and at thesame time is very efiicient in its operation.

A single blade may be employed in connection with the stock A, beingchanged from end to end of the stock, as required; or a blade may be adjusta-bly secured in each end of the stock, if desired.

Having thus described my invention, what I claim, and desire to sccurebyLetters Patent of the United States, is

1. The combination, with the slotted head, of the tilting clamping-bolt,arranged as described, and provided at its outer end with the catch orlip, and means for securing the said tilting bolt in its operativeposition.

2. The combination, with the slotted head, of the tilting clamping-bolt,arranged as described, and provided at its outer end with the catch orlip, and the spiral spring, arranged as described, substantially as setforth.

3. The combination, with the slotted head,

of the tilting clamping-bolt, arranged as de-' scribed, and provided atits outer end with the catch or lip, and having its inner end formedwith an exterior screw-thread, and the nut arranged to work upon thesaid screwthreaded end, and adapted to secure the tiltspiral spring,arranged as described, and the nut working upon the screw-threaded endof the tilting clan1ping-bolt, all constructed and arranged to operatein the manner and for the purpose shown and set forth.

5. The combination, with the stock having the inclined or slantinghorizontal slot in one of its ends, of the tilting clamping-bolt,arranged described, and provided at its outer end with the slantingcatch or lip, and means for securing the tilting bolt in its operativeposition.

6. The combination, with the stock having the inclined or slantinghorizontal slot in one of its ends, of the tilting clamping-bolt,arranged as described, and provided at its outer end with the slantingcatch or lip, and the spiral spring, arranged as described,snbstantially as set forth.

7. The combination, with the stock having the inclined or slantinghorizontal slot in one of its ends, of the tilting clainping'bolt,arranged as described, and provided at its outer end with the slantingcatch or lip, and having its inner end formed with an exteriorscrewthread, and the nut arranged to work upon the said screw-threadedend, and adapted to secure the tilting bolt in its operative position,substantially as described.

8. The combination, with the stock having the inclinedor slantinghorizontal slot in one of its ends, of the tilting clamping-bolt,arranged as described,and provided at its outer end with the slantingcatch or lip, and having its inner end provided with an exteriorscrewthread, the spiral spring, arranged as described, and the nutworking upon the said screwthreaded end of the tilting clamping-bolt,all constructed and arranged to operate in the manner and for thepurpose shown and set forth.

9. The combination,with the stock provided at one-end with the inclinedor slanting horizontal slot, and having at the other end the straighthorizontal slot, of the tilting clamping-bolts,arranged as dcscribed,andprovided at their outer ends, respectively, with the slanting andstraight catches or lips, and means for securing the said tilting boltsin their operative positions, substantially as described.

10. The combination, with the stock provided at one end with theinclined or slanting horizontal slot and having at the other end thestraight horizontal slot, of the tilting clamp ing-bolts, arranged asdeseribed,and provided at their outer ends, respectively, with theslanting and straight catches or lips, and having their inner endsformed with the exterior sci'ewtliread, the spiral springs, arranged asICC described, and the nuts working upon the screw-threaded inner endsof thetilting clamping-bolts, all constructed and arranged to operate inthe manner and for the purpose shown and set forth.

11. The combination, with the slotted head, of the tilting and slidingbolt, arranged as described, and provided at its outer end with thecatch or lip, and means for securing the said tilting and sliding boltin its operative position.

12; The combination, with the slotted head, of the tilting and slidingbolt, arrangedas described, and provided at its outer end with the catchor lip, and the spiral spring, arranged as described, substantially asset forth.

13. The combination, with the slotted head, of the tilting and slidingbolt, arranged as described, and provided at its outer end with thecatch or lip, and having its inner end formed with anexteriorscrew-thread, and the nut arranged to work upon the said screw-threadedend, and adapted to secure the tilting and sliding bolt in its operativeposition, substantially as described.

14. The combination, with the slotted head, of the tilting and slidingbolt, arranged as described, and provided at its outer end with thecatch or lip, and having its inner end formed with an exteriorscrew-thread, the spiral spring, arranged as described, and the nutworking upon the screw-threaded end of the tilting and slidingclamping-bolt, all constructed and arranged to operate in the manner andfor thepurposc shown and set forth.

15. The co1nbination,with the stock having the inclined or slantinghorizontal slot in one of its ends, of the tilting and slidingclampingbolt, arranged as described, and provided at its outer end withthe slanting catch or lip, and means for securing the tilting andsliding bolt in its operative position.

16. The con1bination,with the stock having the inclined or slantinghorizontal slot in one of its ends, of the tilting and slidingclampingbolt, arranged as described, and provided at its outer end withthe slanting catch or lip, and the spiral spring, arranged as described,substantially as set forth.

17. The co1nbination,with the stock having the inclined or slantinghorizontal slot in one of its ends, of the tilting and slidingclampingbolt, arranged as described, and provided at its outer end withthe slanting catch or lip, and having its inner end formed with anexterior screw-thread, and the nut arranged to work upon the saidscrew-threaded end, and adapted to secure the tilting sliding bolt inits operative position, substantially as described.

18. The combination,with the stock having the inclined or slantinghorizontal slot in one of its ends, of the tilting and slidingclampingbolt, arranged as described, and provided at its outer end withthe slanting catch or lip, and having its inner end formed with anexterior screw-thread, the spiral spring, arranged as described, and thenut working upon the said screw-threaded end of the tilting and slidingclamping-bolt, all constructed and arranged to operate in the manner andfor the purpose shown and set forth.

19. The combination, with the stock provided at one end with theinclined or slanting horizontal slot and having at the other end thestraight horizontal slot, and the tilting and sliding clamping-bolts,arranged as described, and provided at their outer ends, respectively,with the slanting and straight catches or lips, and means for securingthe said bolts in their operative positions, substantially as described.

20. The combination, with the stock provided at one end with theinclined or slanting horizontal slot and having at the other end thestraight horizontal slot, of the tilting and slid-

